{"id":55672,"date":"2023-06-03T09:54:33","date_gmt":"2023-06-03T02:54:33","guid":{"rendered":"https:\/\/jobsgo.vn\/blog\/?p=55672"},"modified":"2023-12-20T09:31:22","modified_gmt":"2023-12-20T02:31:22","slug":"cac-cau-hoi-phong-van-android","status":"publish","type":"post","link":"https:\/\/jobsgo.vn\/blog\/cac-cau-hoi-phong-van-android\/","title":{"rendered":"Tuy\u1ec3n t\u1eadp c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android v\u00e0 b\u00ed k\u00edp tr\u1ea3 l\u1eddi"},"content":{"rendered":"\n
Android Developer l\u00e0 m\u1ed9t v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u b\u1ea1n tr\u1ebb quan t\u00e2m v\u00ec n\u00f3 \u0111em l\u1ea1i nhi\u1ec1u c\u01a1 h\u1ed9i ph\u00e1t tri\u1ec3n v\u00e0 m\u1ee9c l\u01b0\u01a1ng h\u1ea5p d\u1eabn. N\u1ebfu b\u1ea1n chu\u1ea9n b\u1ecb tham gia ph\u1ecfng v\u1ea5n v\u1ecb tr\u00ed n\u00e0y th\u00ec h\u00e3y tham kh\u1ea3o ngay <\/em>c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/em><\/strong><\/a> v\u00e0 b\u00ed k\u00edp tr\u1ea3 l\u1eddi d\u01b0\u1edbi \u0111\u00e2y nh\u00e9.<\/em><\/p>\n M\u1ee5c l\u1ee5c<\/p> G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Android<\/strong><\/a> l\u00e0 m\u1ed9t h\u1ec7 \u0111i\u1ec1u h\u00e0nh m\u00e3 ngu\u1ed3n \u0111\u01b0\u1ee3c m\u1edf v\u00e0 s\u1eed d\u1ee5ng tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng (\u0111i\u1ec7n tho\u1ea1i, m\u00e1y t\u00ednh b\u1ea3ng). \u0110\u1ed3ng th\u1eddi n\u00f3 c\u0169ng l\u00e0 h\u1ec7 th\u1ed1ng d\u1ef1a tr\u00ean nh\u00e2n Linux \u0111\u01b0\u1ee3c trang b\u1ecb c\u00e1c th\u00e0nh ph\u1ea7n phong ph\u00fa cho ph\u00e9p c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n mobile t\u1ea1o v\u00e0 ch\u1ea1y \u1ee9ng d\u1ee5ng. N\u00f3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n v\u00e0 n\u00e2ng cao.<\/p><\/blockquote>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Application l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef d\u00f9ng \u0111\u1ec3 ch\u1ec9 l\u1edbp c\u01a1 s\u1edf trong \u1ee9ng d\u1ee5ng. \u0110\u1eb7c bi\u1ec7t l\u1edbp n\u00e0y s\u1ebd ch\u1ee9a y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 h\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Android.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n GUI \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 \u0111\u1ed3 ho\u1ea1 giao di\u1ec7n. N\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 h\u1eefu \u00edch gi\u00fap cho c\u00e1c nh\u00e0 l\u1eadp tr\u00ecnh m\u00f4 ph\u1ecfng c\u00e1c k\u1ecbch b\u1ea3n c\u1ee5 th\u1ec3, theo h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng nh\u00ecn th\u1ea5y.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n 4 l\u1edbp c\u1ea3m bi\u1ebfn c\u1ee7a Android bao g\u1ed3m: Sensor, SensorEvent, SensorEventListener, SensorManager.<\/p>\n Xem th\u00eam: Top 35+ c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Java<\/a> ph\u1ed5 bi\u1ebfn nh\u1ea5t b\u1ea1n n\u00ean tham kh\u1ea3o<\/strong><\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n L\u00fd do m\u00e0 Bytecode kh\u00f4ng \u0111\u01b0\u1ee3c ch\u1ea1y trong Android l\u00e0 v\u00ec Android ch\u1ea1y tr\u00ean m\u1ed9t lo\u1ea1i \u0111\u1eb7c tr\u01b0ng ri\u00eang bi\u1ec7t bytecode.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Android c\u00f3 t\u00ednh ch\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i, n\u00f3 c\u0169ng c\u00f3 v\u00e0i \u01b0u \u0111i\u1ec3m nh\u01b0: L\u00e0 ngu\u1ed3n m\u1edf, \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 b\u1edfi nhi\u1ec1u nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n c\u1ee9ng, ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean Java,..<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a t\u00f4i th\u00ec Android kh\u00f4ng s\u1eed d\u1ee5ng bytecode b\u1edfi v\u00ec n\u00f3 c\u00f3 m\u00e3 ri\u00eang, m\u00e3 \u0111\u00f3 ng\u01b0\u1eddi ta g\u1ecdi l\u00e0 Dalvik Virtual Machine.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Adapter \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i Adapterview v\u1edbi d\u1eef li\u1ec7u b\u00ean ngo\u00e0i.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo hi\u1ec3u bi\u1ebft c\u1ee7a t\u00f4i, Intent \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong 3 tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3 l\u00e0: Kh\u1edfi \u0111\u1ed9ng thi\u1ebft b\u1ecb, b\u1eaft \u0111\u1ea7u m\u1ed9t ho\u1ea1t \u0111\u1ed9ng, b\u1eaft \u0111\u1ea7u ph\u00e1t s\u00f3ng.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo t\u00f4i, Android s\u1ebd c\u00f3 5 th\u00e0nh ph\u1ea7n ch\u00ednh \u0111\u00f3 l\u00e0:<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo t\u00f4i, 2 ph\u1ea7n m\u1ec1m Android kh\u00e1c nhau v\u1eabn c\u00f3 th\u1ec3 chia s\u1ebb c\u00f9ng Linux ID. Tuy nhi\u00ean n\u00f3 s\u1ebd c\u00f3 \u0111i\u1ec1u ki\u1ec7n l\u00e0 c\u1ea3 ph\u1ea3i s\u1ebd c\u00f9ng k\u00fd ch\u1ee9ng ch\u1ec9 v\u00e0 chia s\u1ebb chung VP.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo t\u00f4i \u0111\u01b0\u1ee3c bi\u1ebft, l\u1ec7nh Content Provider \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 truy c\u1eadp d\u1eef li\u1ec7u c\u00f3 t\u1ed5 ch\u1ee9c v\u00e0 c\u1ea5u tr\u00fac c\u1ee5 th\u1ec3. \u0110\u1eb7c bi\u1ec7t, n\u00f3 c\u00f2n \u0111\u01b0\u1ee3c xem nh\u01b0 m\u1ed9t lo\u1ea1i ph\u01b0\u01a1ng ti\u1ec7n k\u1ebft n\u1ed1i chu\u1ed7i m\u00e3 v\u1edbi nhau.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Finalize () \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u01b0\u01a1ng th\u1ee9c l\u1eadp tr\u00ecnh h\u01b0\u1edbng \u0111\u1ed1i t\u01b0\u1ee3ng<\/strong><\/a>. N\u00f3 s\u1ebd t\u1ef1 \u0111\u1ed9ng g\u1ecdi khi \u0111\u1ed1i t\u01b0\u1ee3ng b\u1ecb h\u1ee7y b\u1ecf. \u0110\u1eb7c bi\u1ec7t n\u00f3 r\u1ea5t \u0111\u01b0\u1ee3c ng\u01b0\u1eddi l\u1eadp tr\u00ecnh y\u00eau th\u00edch v\u00ec c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng d\u1ecdn d\u1eb9p t\u00e0i nguy\u00ean li\u00ean quan \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng c\u00f2n s\u1eed d\u1ee5ng n\u1eefa.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Theo t\u00f4i, Adapter s\u1ebd \u0111\u1ea3m nh\u1eadn nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i t\u1eebng d\u1eef li\u1ec7u v\u00e0o th\u00e0nh hi\u1ec3n th\u1ecb.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Bitmap Pooling trong Android \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u00e0 l\u1eadp tr\u00ecnh vi\u00ean<\/strong><\/a> \u00e1p d\u1ee5ng \u0111\u1ec3 kh\u00f4ng c\u1ea7n ph\u1ea3i t\u1ea1o \u0111\u1ed1i t\u01b0\u1ee3ng bitmap m\u1ed7i khi c\u1ea7n. Ngay sau khi s\u1eed d\u1ee5ng bitmap th\u00ec b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t n\u00f3 l\u00ean stack.<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Canvas \u0111\u01b0\u1ee3c hi\u1ec3u l\u00e0 m\u1ed9t b\u1ec1 m\u1eb7t 2D \u0111\u1ec3 v\u1ebd v\u00e0 hi\u1ec3n th\u1ecb b\u00ean ngo\u00e0i cho ng\u01b0\u1eddi d\u00f9ng th\u1ea5y. V\u00ed d\u1ee5 nh\u01b0: V\u1ebd m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng, m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt, m\u1ed9t h\u00ecnh tr\u00f2n,..<\/p>\n G\u1ee3i \u00fd tr\u1ea3 l\u1eddi:<\/strong><\/p>\n Khi l\u1eadp tr\u00ecnh Android, ch\u00fang ta c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c ng\u00f4n ng\u1eef nh\u01b0: Java, XML, C ho\u1eb7c C++.<\/p>\n B\u00e0i vi\u1ebft tr\u00ean \u0111\u00e2y JobsGO \u0111\u00e3 gi\u00fap b\u1ea1n t\u00ecm hi\u1ec3u xong v\u1ec1 c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android<\/strong> k\u00e8m theo g\u1ee3i \u00fd tr\u1ea3 l\u1eddi. Hy v\u1ecdng r\u1eb1ng v\u1edbi chia s\u1ebb n\u00e0y s\u1ebd h\u1eefu \u00edch v\u1edbi b\u1ea1n trong v\u00f2ng ph\u1ecfng v\u1ea5n s\u1eafp t\u1edbi. Th\u01b0\u1eddng xuy\u00ean truy c\u1eadp v\u00e0o Blog JobsGO<\/strong><\/a> \u0111\u1ec3 bi\u1ebft th\u00eam nhi\u1ec1u b\u00ed quy\u1ebft ph\u1ecfng v\u1ea5n b\u1ea1n nh\u00e9.<\/p>\n","protected":false},"excerpt":{"rendered":" 4.5\/5 – (2 votes) Android Developer l\u00e0 m\u1ed9t v\u1ecb tr\u00ed \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u b\u1ea1n tr\u1ebb quan t\u00e2m v\u00ec n\u00f3 \u0111em l\u1ea1i nhi\u1ec1u c\u01a1 h\u1ed9i ph\u00e1t tri\u1ec3n v\u00e0 m\u1ee9c l\u01b0\u01a1ng h\u1ea5p d\u1eabn. N\u1ebfu b\u1ea1n chu\u1ea9n b\u1ecb tham gia ph\u1ecfng v\u1ea5n v\u1ecb…<\/p>\n","protected":false},"author":43,"featured_media":55673,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n android","_yoast_wpseo_title":"20 c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android th\u01b0\u1eddng g\u1eb7p v\u00e0 b\u00ed quy\u1ebft tr\u1ea3 l\u1eddi %%sep%% %%sitename%%","_yoast_wpseo_metadesc":"B\u00e0i vi\u1ebft d\u01b0\u1edbi s\u1ebd gi\u00fap b\u1ea1n t\u1ed5ng h\u1ee3p c\u00e1c c\u00e2u h\u1ecfi ph\u1ecfng v\u1ea5n Android k\u00e8m c\u00e2u tr\u1ea3 l\u1eddi g\u1ee3i \u00fd. N\u1ebfu b\u1ea1n quan t\u00e2m, h\u00e3y theo d\u00f5i ngay nh\u00e9.","_yoast_wpseo_focus_keyphrase":"","faq":"","nganh_nghe_chuc_vu_lien_quan":["L\u1eadp Tr\u00ecnh Android"]},"categories":[1059,3028],"tags":[],"yoast_head":"\nC\u00e2u 1: B\u1ea1n hi\u1ec3u Android l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 2: B\u1ea1n hi\u1ec3u Application l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 3: GUI l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 4: B\u1ea1n h\u00e3y cho bi\u1ebft Implicit v\u00e0 Explicit kh\u00e1c nhau th\u1ebf n\u00e0o?<\/strong><\/span><\/h2>\n
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C\u00e2u 5: B\u1ea1n h\u00e3y cho bi\u1ebft 4 l\u1edbp c\u1ea3m bi\u1ebfn c\u1ee7a Java l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 6: T\u1ea1i sao Bytecode kh\u00f4ng ch\u1ea1y trong Android?<\/strong><\/span><\/h2>\n
C\u00e2u 7: B\u1ea1n c\u00f3 th\u1ec3 cho bi\u1ebft m\u1ed9t v\u00e0i \u01b0u \u0111i\u1ec3m c\u1ee7a Android?<\/strong><\/span><\/h2>\n
C\u00e2u 8: Android s\u1eed d\u1ee5ng bytecode n\u00e0o?<\/strong><\/span><\/h2>\n
C\u00e2u 9: Adapter \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 10: B\u1ea1n h\u00e3y cho bi\u1ebft 2 ph\u01b0\u01a1ng ph\u00e1p l\u01b0u tr\u1eef d\u1eef li\u1ec7u ch\u00ednh<\/strong><\/span><\/h2>\n
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C\u00e2u 11: B\u1ea1n h\u00e3y cho bi\u1ebft c\u00e1ch s\u1eed d\u1ee5ng Intent?<\/strong><\/span><\/h2>\n
C\u00e2u 12: B\u1ea1n h\u00e3y cho bi\u1ebft c\u00e1c th\u00e0nh ph\u1ea7n ch\u00ednh c\u1ee7a Android l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
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C\u00e2u 13: Hai ph\u1ea7n m\u1ec1m Android kh\u00e1c nhau c\u00f3 th\u1ec3 chia s\u1ebb c\u00f9ng Linux ID kh\u00f4ng?<\/strong><\/span><\/h2>\n
C\u00e2u 14: B\u1ea1n c\u00f3 th\u1ec3 cho bi\u1ebft Content Provider c\u00f3 nhi\u1ec7m v\u1ee5 g\u00ec kh\u00f4ng?<\/strong><\/span><\/h2>\n
C\u00e2u 15: B\u1ea1n h\u00e3y cho bi\u1ebft ph\u01b0\u01a1ng th\u1ee9c Finalize () l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 16: B\u1ea1n h\u00e3y cho bi\u1ebft m\u1ed9t v\u00e0i ph\u01b0\u01a1ng ph\u00e1p l\u01b0u tr\u1eef d\u1eef li\u1ec7u ch\u00ednh?<\/strong><\/span><\/h2>\n
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C\u00e2u 17: B\u1ea1n c\u00f3 th\u1ec3 cho bi\u1ebft Adapter \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 18: Bitmap Pooling trong Android l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 19: Canvas l\u00e0 g\u00ec?<\/strong><\/span><\/h2>\n
C\u00e2u 20: L\u1eadp tr\u00ecnh Android s\u1eed d\u1ee5ng ng\u00f4n ng\u1eef n\u00e0o?<\/strong><\/span><\/h2>\n